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    High strain point glass
    1.
    发明授权
    High strain point glass 有权

    公开(公告)号：US11352287B2

    公开(公告)日：2022-06-07

    申请号：US13687091

    申请日：2012-11-28

    申请人： Vitro S.A.B. de C.V.

    发明人： Larry J. Shelestak ,  James W. McCamy ,  Paul R. Ohodnicki, Jr. ,  Hong Li ,  Adam D. Polcyn

    IPC分类号： C03C3/087 ,  G11B5/73 ,  H01L31/0392

    摘要： The present invention relates to a glass composition that includes: 57 to 75 percent by weight of SiO2; 3 to 11 percent by weight of Al2O3; 6 to 11 percent by weight of Na2O; 16 to 21 percent by weight of CaO; 0.01 to 0.1 percent by weight of Li2O; and less than 0.05 percent by weight of K2O. Each percent by weight is based on total weight of the glass composition. Glass products are also provided that have a bulk glass composition as described above. The glass products, such as flat glass products and glass substrates, have a strain point of at least 590° C. and a thermal expansion of at least 7.4 ppm/° C. The present invention also relates to magnetic recording articles and photovoltaic cells that include a glass substrate that has a bulk glass composition as described above.

    Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same
    2.
    发明授权
    Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same 有权

    公开(公告)号：US11261122B2

    公开(公告)日：2022-03-01

    申请号：US15071805

    申请日：2016-03-16

    申请人： Vitro S.A.B. de C.V.

    发明人： Mark O. Naylor ,  Lawrence E. Jansen ,  Larry J. Shelestak

    IPC分类号： C03C3/087 ,  C03C4/02 ,  C03B18/12 ,  C03C3/095 ,  C03C4/00 ,  C03B18/02 ,  C03B3/02 ,  C03B5/193 ,  C03B5/225

    摘要： A glass has a basic soda-lime-silica glass portion, and a colorant portion including total iron as Fe2O3 selected from the group of total iron as Fe2O3 in the range of greater than zero to 0.02 weight percent; total iron as Fe2O3 in the range of greater than 0.02 weight percent to less than 0.10 weight percent and total iron as Fe2O3 in the range of 0.10 to 2.00 weight percent; redox ratio in the range of 0.2 to 0.8, and tin and/or fin compounds, e.g. SnO2 greater than 0.000 to 5.0 weight percent. In one embodiment of the invention, the glass has a fin side and an opposite air side, wherein the tin side of the glass is supported on a molten fin bath during forming of the glass. The tin concentration at the tin side of the glass is greater than, less than, or equal to the fin concentration hi “body portion” of the glass. The “body portion” of the glass extending from the air side of the glass toward the fin side and terminating short of the tin side of the glass.